Machine



(No Model.) 3 Shee ts Sheet 2. R. A. BAUMGARTNER.

DEGORTIGATING MACHINE.

No. 471,372. Patented Mar. '22, 1892.

3 M e h S. m m h S 3 M GG A AG BU .R Am IE RD (No Model.)

No. 471,372. Patented Mar. 22, 1892.

RUDOLF A. BAUMGARTNER, OF ROSENHEIM, GERMANY.

DECORTICATING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 471,372, dated March 22, 1892.

Application filed February 6, 1890. Serial No To all whom it may concern.

Be it known that I, RUDoLF A. BAUMGART- NER, of Rosenheim, Bavaria, Germany, have invented an Improved Decorticating-lvlachine, (for which I have obtained a patent in Germany, No. 47,015, dated May 16, 1889, and in England, No. 8,427, dated May 21, 1889,) of which the following is a specification.

This invention relates to a decorticatingmachine which will effectively remove the chaff and germs from the grain without injury to the latter.

It consists in the various features of improvement more fully pointed out in the claims.

In the accompanying drawings,Figure 1 is a vertical central section of my improved decorticating-machine. Fig. 2 is an elevation of the same. Fig. 3 is a top view of the vaneB; Fig. 4, a top view of the fan D; Fig. 5, a top view of fan F; Fig. 6, a top view of upper most partition 19 Fig. 7, a vertical central section of Fig. 4; Fig. 8, an elevation of fan F; Fig. 9, a section on line 0 r, Fig. 5; Fig. 10, a top view of bed-plate G; Fig. 11, a top View of the intermediate partition 19', and Fig. 12 a vertical central section of a modification of the decorticating-machine. Fig. 13 is a vertical central section through the wind-chest, and Fig. 14 a horizontal section of the same.

The letter G represents the bed-plate of the machine, from which projects upwardly a set of sectional columns f. Between these columns there is formed an annular chamber by an outer cylinder 71. and an inner perforated cylinder a. This chamber receives the outwardly-thrown coarse chaff.

The space inclosed by the cylinders is by a series of horizontal partitions p 19' p 13 divided into a series of compartments communicating with each other by openings 2', placed at opposite sides of the apparatus.

Through the apparatus there extends a vertical shaft A, revolved from a pulley and carrying a wind-vane B at the top of the apparatus and a set of fans or scouring-blades D E F within the chambers formed between the horizontal partitions. The fans D E F have all a perforated body, as hereinafter described, and the working chamber is formed between 339,454. (No model.) Iatented in Germany May 16, 1889, No. 47,015 and in England May 21,1889,No. 8,427.

the periphery of the fans and the perforated cylinder (1.

Below the vane B-there is a wind-chest 0, formed of two telescoping sections. The upper of these sections may be raised or lowered by lever c the smaller will be the opening between chest and partition through which the air is drawn up. Thus the chest serves to regulate the degree of draft in the machine. The chest communicates with the outer space between the cylinders h a, and also with the space inclosed by the fans D E F through additional perforations in the horizontal partitions, Figs. 9 and 11, thus subjecting the grain to suction at the outside and also at the inside. regulating the draft) is to receive the fine particles of dust-drawn up from the grain by the suction-vane B. The chest thus acts as a f unnel to receive the fine waste at the bottom and discharge it at the top. composed of radial arms connected at their outer ends by a perforated drum D Outside of this drum the fan carries slotted blades D that may be set at various angles.

The second fan E is of a similar construction.

The third fan F, which I term the polishingfan, is composed of porcelain sections laheld in place by a set of headed pins 70. The sections is alternate with fine perforated metal sections Z, and these sections are provided with outwardly-projecting blades m.

c is a register above the uppermost partition 19 and below chest 0 to regulate the size of the wind-openings in such chest. This register consists of a perforated plate provided with a handle and having a central opening for the admission of shaft A, around which it may be revolved. As the openingsin the register are brought more or less in line with the openings in the partition 19, the size of the 5 wind-openings may be increased or diminished.

In Fig. 12 I have shown two superposed polishing-fans F and an additional wind-vane B at the bottom, which draws air up or into The object of the wind-chest (besides 70' The first fan D is 75 the apparatus to co-cperate with the exhaustvane Bin carrying the lighter Waste upward.

In use the shaft A is revolved to revolve the parts 13 D E F, and the grain to be cleaned is admitted through hopper b. As the grain descends from partition to partition it is agitated and acted upon by the revolving fans and by an outer and an inner air-current. The coarser waste is thrown outward through perforated cylinders a and leaves the machine either at the bottom of the apparatus, as in Fig. 1, or through lateral discharge-openings n n, as in 12. The finer Waste is drawn up by vane B and through the chest 0, as described. The polishing-fan F has for its objeet to remove the last particles of dust and to rub off any remaining" fibers or chaff. The cleaned grain leaves the machine finally through dischargeopenirig c. The machine may be worked with advantage at six hundred revolutions per minute.

hat I claim is- 1. The combination of a series of open partitions with outer cylinder h, inner perforated cylinder a, a central shaft, a series of scourin g-blades secured thereto, a telescoping windchest above the blades, and a vane above the WlIMl'GlIGSi, substantially as specified.

2. The combination of a series of open partitions with cylinders h a, shaft A, scouringblades secured thereto, a telescoping Windchest above the blades, a revolving. register that regulates the wind-openings in the chest, and with a vane B above the chest, substantially as specified.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

RUDOLF A. BAUMGARTN ER.

.Vitnesses:

ALlorcK MOLEY, WILT. MEYER. 

